Do some research into thornless varieties of plants.
a. what plants are available which do not have thorns?
b. is thornlessness a mutation?
c. when and where was the possibility of growing thornless varieties of plants discovered?
d. how do these varieties compare with the variety that has that has thorns

Which of the following best reflects what we know about how the flu virus moves between species? a) the flu virus in a pig is mutated and replicated in alternate arrangements so that humans who eat the pig products can be infected. b) a flu virus from a human epidemic or pandemic infects birds; the birds replicate the virus differently and then pass it back to humans. c) an influenza virus gains new sequences of dna from another virus, such as a herpesvirus; this enables it to be transmitted to a human host. d) an animal such as a pig is infected with more than one virus, genetic recombination occurs, the new virus mutates, the virus is passed to a new species such as a bird, and the virus mutates again and can now be transmitted to humans.

If your job requires you to use a respirator, your employer is required to do three things. what is missing from the list? have you medically evaluated to determine that it is safe for you to wear a respirator train you on how and when to use a respirator

Ineed i have a headace and ive had 3 bottles of water as well as milk and i cant take any pain meds cause they will interfere with my current what else can i do?